Battery charger



FIG. 1 is a top right-front perspective view of a battery charger,showing our new design;

FIG. 2 is a bottom left-rear isometric view thereof.

FIG. 3 is a top left-rear isometric view thereof.

FIG. 4 is a bottom right-rear isometric view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

FIG. 7 is a front elevational view thereof.

FIG. 8 is a rear elevational view thereof.

FIG. 9 is a left side elevational view thereof; and,

FIG. 10 is a right side elevational view thereof.

The broken lines in the figures represent portions of the article whichform no part of the claimed design.

CLAIM The ornamental design for a battery charger, as shown anddescribed.